6 papers
Charge states of strongly correlated 3d oxides: from typical insulator to unconventional electron-hole Bose liquid
A. S. Moskvin
We develop a model approach to describe charge fluctuations and different charge phases in strongly correlated 3d oxides. As a generic model system one considers that of centers ea…
Surface plasmon resonances in the absorption spectra of nanocrystalline cupric oxide
B. A. Gizhevskii, Yu. P. Sukhorukov, N. N. Loshkareva +3
Optical absorption spectra of nanocrystalline cupric oxide CuO samples, obtained using the converging spherical shock wave procedure, reveal significant spectral weight red-shift a…
Infrared optical response of strongly correlated cuprates: the effects of topological phase separation
A. S. Moskvin, E. V. Zenkov
We examine the effects of electron inhomogeneity on IR optical conductivity of cuprates. Nanoscopic electron inhomogeneity is believed to be inherent property of doped cuprates thr…
Features of Hopping Integral and Unconventional Orbital Modes for Quantum Skyrmions in Heisenberg Ferromagnet
R. A. Istomin, A. S. Moskvin
We use the coherent state approximation for the skyrmion in the isotropic quantum Heisenberg ferromagnet to obtain analytical expression for skyrmion hopping integral as a function…
Non-rigid shell model and novel correlational effects in atomic and molecular systems
Yu. D. Panov, A. S. Moskvin
Direct analytical and numerical calculation show that two-electron atomic configuration can be unstable with respect to a static or dynamic shift of the electron shells. This enabl…
Vibronic Mechanism of the Isotope and Pressure Effects in Cuprates
A. S. Moskvin, Yu. D. Panov
The doped cuprates are considered to be a system of local spinless bosons moving in a lattice of the hole pseudo-Jahn-Teller centers CuO_{4}^{5-}. A detailed qualitative and quanti…